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Wei W, Ding M, Zhou K, Xie H, Zhang M, Zhang C. Protective effects of wedelolactone on dextran sodium sulfate induced murine colitis partly through inhibiting the NLRP3 inflammasome activation via AMPK signaling. Biomed Pharmacother 2017; 94:27-36. [DOI: 10.1016/j.biopha.2017.06.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/29/2017] [Accepted: 06/20/2017] [Indexed: 02/07/2023] Open
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Ding H, Wang Y, Gao Y, Han X, Liu S, Tang G, Li J, Zhao D. Purification of wedelolactone from Eclipta alba and evaluation of antioxidant activity. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2017.1374973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Hui Ding
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Yongqiang Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Yujie Gao
- Tianjin Academy of Environmental Sciences, Tianjin, China
- Tianjin Huanke Environmental Planning Technology Development Company Limited, Tianjin, China
| | - Xu Han
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Shejiang Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Guiwen Tang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Jiaqi Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Dan Zhao
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
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Peng L, Huang X, Jin X, Jing Z, Yang L, Zhou Y, Ren J, Zhao Y. Wedelolactone, a plant coumarin, prevents vascular smooth muscle cell proliferation and injury-induced neointimal hyperplasia through Akt and AMPK signaling. Exp Gerontol 2017. [PMID: 28634089 DOI: 10.1016/j.exger.2017.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Wedelolactone (WDL) is a natural compound derived from Chinese herbal medicine Eclipta prostrate L, and has been reported to exhibit various effects potentially beneficial for human health. However, the possible preventive effects of WDL toward vascular remodeling and mechanisms involved have not been investigated to date. In this study, we investigated the effects of WDL on proliferation induced by platelet-derived growth factor (PDGF) in primary rat aortic smooth muscle cells (VSMCs) and on neointimal hyperplasia resulted from balloon injury in rats. WDL exhibited strong inhibitory effects against PDGF-induced VSMC proliferation. Cell cycle analysis revealed that WDL induced G0/G1 arrest and prevented cell cycle from entering S phase. Immunoblot analysis suggested that the cell cycle arrest induced by WDL was through Akt suppression and adenosine 5'-monophosphate-activated protein kinase (AMPK) activation, with a subsequent cyclin-dependent kinase inhibitor p21 induction and cyclin D1 inhibition. We also observed that WDL notably reduced neointima-to-media area ratio of balloon-injured rat common carotid arteries (CCAs) in comparison with those untreated balloon-injured CCAs. The regulation of WDL on protein expressions of Akt, AMPK and cyclin D1 in vivo were also consistent with that in vitro. Taken together, our results suggest WDL exhibits potential preventive effects toward vascular remodeling and neointimal hyperplasia through the reduction of VSMC proliferation via inhibition of Akt and activation of AMPK.
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Affiliation(s)
- Lu Peng
- Medical College, Xiamen University, Xiamen 361000, China
| | - Xuefeng Huang
- Zhongshan Hospital, Xiamen University, Xiamen 361000, China
| | - Xin Jin
- Medical College, Xiamen University, Xiamen 361000, China
| | - Zuo Jing
- Medical College, Xiamen University, Xiamen 361000, China
| | - Lichao Yang
- Medical College, Xiamen University, Xiamen 361000, China
| | - Yu Zhou
- Medical College, Xiamen University, Xiamen 361000, China
| | - Jie Ren
- Medical College, Xiamen University, Xiamen 361000, China
| | - Yun Zhao
- Medical College, Xiamen University, Xiamen 361000, China; Fujian Provincial Key Laboratory of Regenerative Medicine, Xiamen 361000, China.
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Flavonoids: promising natural compounds against viral infections. Arch Virol 2017; 162:2539-2551. [PMID: 28547385 PMCID: PMC7087220 DOI: 10.1007/s00705-017-3417-y] [Citation(s) in RCA: 259] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/05/2017] [Indexed: 01/12/2023]
Abstract
Flavonoids are widely distributed as secondary metabolites produced by plants and play important roles in plant physiology, having a variety of potential biological benefits such as antioxidant, anti-inflammatory, anticancer, antibacterial, antifungal and antiviral activity. Different flavonoids have been investigated for their potential antiviral activities and several of them exhibited significant antiviral properties in in vitro and even in vivo studies. This review summarizes the evidence for antiviral activity of different flavonoids, highlighting, where investigated, the cellular and molecular mechanisms of action on viruses. We also present future perspectives on therapeutic applications of flavonoids against viral infections.
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Chassagne F, Deharo E, Punley H, Bourdy G. Treatment and management of liver diseases by Khmer traditional healers practicing in Phnom Penh area, Cambodia. JOURNAL OF ETHNOPHARMACOLOGY 2017; 202:38-53. [PMID: 28284791 DOI: 10.1016/j.jep.2017.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 03/02/2017] [Accepted: 03/03/2017] [Indexed: 05/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Liver disorders are a major health problem in Cambodia, where some patients prefer to seek treatment from traditional healers. The aim of the study was to document the knowledge and practices of these healers in four Southern Cambodian provinces. MATERIALS AND METHODS An ethnopharmacological survey was carried out from September 2015 to January 2016 in Cambodian urban and rural areas. Thirty-three Khmer traditional healers (KTH) were interviewed using a semi-structured questionnaire including socio-demographic data, healer's formation and their professional practice conditions, perception of liver diseases (types and causes of liver disorders, diagnostic methods and symptoms of liver problems), dietary recommendations given to patients, and herbal remedies used to treat them. For each medicinal plant mentioned in herbal remedies, the local name, part of the plant, mode of preparation and administration, and their properties, according to the healers, were recorded. The plants mentioned by the traditional therapists were collected and later identified by specialists. RESULTS Different types of liver disease are identified by the healers, and diagnosis was mostly based on reading medical records, and by observing the yellow discoloration of the skin and eyes. A total of 42 herbal remedies including 83 medicinal plants belonging to 40 families were mentioned for treating liver disorders. The most predominant families were Leguminosae and Poaceae. Among the plants reported, Cananga latifolia, Andrographis paniculata, Smilax aff. glabra, Gomphrena celosioides, Passiflora foetida and Physalis minima were the most cited species. A large part of the herbal remedies used were multi-ingredient recipes, and were prepared mainly by a decoction administered orally. Plants are combined in multi-ingredient recipes, and selected on the basis of their properties (trocheak, psah, somrap mé rok, ktchol) which originate from Khmer medical concepts. Most of the plants used by healers have a wide ethnobotanical use for liver disorders, and have been studied for their hepatoprotective activity and related activities on the liver. CONCLUSION In the diagnosis and treatment of liver diseases, KTH have incorporated biomedical concepts and new practices, which suggest that they could be defined as neotraditional healers. Medicinal plants constitute the core of traditional medicine practice by these healers, and these plants play a very important role in the health care of people with liver problems in Cambodia. Therefore, more attention should be paid to the integration of healers in national health care programs for the development of combined therapies. Furthermore, two plant species (i.e. Cananga latifolia and Willughbeia edulis) were found to be widely used for treating liver disorders in our survey, and should be studied for their pharmacological potential for liver problems.
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Affiliation(s)
| | - Eric Deharo
- UMR 152 Pharmadev, Université de Toulouse, IRD, UPS, France.
| | - Hieng Punley
- Faculty of Medicine, University of Health Sciences, Phnom Penh, Cambodia.
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Morel LJDF, Azevedo BCD, Carmona F, Contini SHT, Teles AM, Ramalho FS, Bertoni BW, França SDC, Borges MDC, Pereira AMS. A standardized methanol extract of Eclipta prostrata (L.) L. (Asteraceae) reduces bronchial hyperresponsiveness and production of Th2 cytokines in a murine model of asthma. JOURNAL OF ETHNOPHARMACOLOGY 2017; 198:226-234. [PMID: 27956356 DOI: 10.1016/j.jep.2016.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/21/2016] [Accepted: 12/09/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Eclipta prostrata (L.) L. (Asteraceae) has been used in Brazilian traditional medicine to treat asthma and other respiratory illnesses. AIMS OF THE STUDY To investigate the effects of different doses of a standardized extract of E. prostrata using a murine model of allergen induced asthma. MATERIALS AND METHODS Balb/c mice were sensitized twice with ovalbumin (OVA) administered intraperitoneally and challenged over four alternate days with nasal instillations of OVA solution. The standardized methanol extract of E. prostrata was administered in doses of 100, 250 and 500mgkg-1 concomitantly with nasal instillation over seven consecutive days. Control animals were treated with dexamethasone or saline solution. Bronchial hyperresponsiveness, production of Th1 and Th2 cytokines, allergen sensitization, airway and lung inflammation, mucous secretion and airway remodeling were assessed. RESULTS The concentrations of chemical markers in the standardized methanol extract were 0.02% oroboside, 1.69% demethylwedelolactone and 1.71% wedelolactone. Treatment with 250mgkg-1 of extract, which provided 0.745, 4.22 and 4.30mgkg-1day-1 of oroboside, demethylwedelolactone and wedelolactone, respectively, significantly reduced (P<0.05) respiratory resistance and elastance. Such effects were comparable with those produced by dexamethasone. The total number of inflammatory cells and eosinophils in the bronchoalveolar lavage and the concentrations of interleukin (IL)-4, IL-5 and IL-13 in lung homogenate were significantly reduced (P<0.05) by the methanol extract of E. prostrata. CONCLUSION The results presented herein demonstrate for the first time the anti-inflammatory activity of E. prostrata in a murine model of asthma, thereby supporting the ethnopharmacological uses of the plant.
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Affiliation(s)
- Lucas Junqueira de Freitas Morel
- Departamento de Biotecnologia em Plantas Medicinais, Universidade de Ribeirão Preto, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil
| | - Bruna Cestari de Azevedo
- Departamento de Biotecnologia em Plantas Medicinais, Universidade de Ribeirão Preto, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil
| | - Fábio Carmona
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre 14049-900 Ribeirão Preto, SP, Brazil
| | - Silvia Helena Taleb Contini
- Departamento de Biotecnologia em Plantas Medicinais, Universidade de Ribeirão Preto, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil
| | - Aristônio Magalhães Teles
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Campus Samambaia, Av. Esperança, 74690-900 Goiânia, GO, Brazil
| | - Fernando Silva Ramalho
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre 14049-900 Ribeirão Preto, SP, Brazil
| | - Bianca Waléria Bertoni
- Departamento de Biotecnologia em Plantas Medicinais, Universidade de Ribeirão Preto, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil
| | - Suzelei de Castro França
- Departamento de Biotecnologia em Plantas Medicinais, Universidade de Ribeirão Preto, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil
| | - Marcos de Carvalho Borges
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre 14049-900 Ribeirão Preto, SP, Brazil
| | - Ana Maria Soares Pereira
- Departamento de Biotecnologia em Plantas Medicinais, Universidade de Ribeirão Preto, Av. Costábile Romano 2201, 14096-900 Ribeirão Preto, SP, Brazil.
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Ganta KK, Mandal A, Debnath S, Hazra B, Chaubey B. Anti-HCV Activity from Semi-purified Methanolic Root Extracts of Valeriana wallichii. Phytother Res 2017; 31:433-440. [PMID: 28078810 DOI: 10.1002/ptr.5765] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/08/2016] [Accepted: 12/13/2016] [Indexed: 01/10/2023]
Abstract
Hepatitis C virus (HCV) is a serious global health problem affecting approximately 130-150 million individuals. Presently available direct-acting anti-HCV drugs have higher barriers to resistance and also improved success rate; however, cost concerns limit their utilization, especially in developing countries like India. Therefore, development of additional agents to combat HCV infection is needed. In the present study, we have evaluated anti-HCV potential of water, chloroform, and methanol extracts from roots of Valeriana wallichii, a traditional Indian medicinal plant. Huh-7.5 cells infected with J6/JFH chimeric HCV strain were treated with water, chloroform, and methanol extracts at different concentrations. Semi-quantitative reverse transcription polymerase chain reaction result demonstrated that methanolic extract showed reduction in HCV replication. The methanolic extract was fractionated by thin layer chromatography, and the purified fractions (F1, F2, F3, and F4) were checked for anti-HCV activity. Significant viral inhibition was noted only in F4 fraction. Further, intrinsic fluorescence assay of purified HCV RNA-dependent RNA polymerase NS5B in the presence of F4 resulted in sharp quenching of intrinsic fluorescence with increasing amount of plant extract. Our results indicated that methanolic extract of V. wallichii and its fraction (F4) inhibited HCV by binding with HCV NS5B protein. The findings would be further investigated to identify the active principle/lead molecule towards development of complementary and alternative therapeutics against HCV. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Krishna Kumar Ganta
- Functional Genomics Lab, Centre for Advanced Study, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India
| | - Anirban Mandal
- Functional Genomics Lab, Centre for Advanced Study, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India
| | - Sukalyani Debnath
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Banasri Hazra
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Binay Chaubey
- Functional Genomics Lab, Centre for Advanced Study, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India
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Raval PR, Raval RM. Treatment of infective hepatitis: Where biomedicine has no answers, Ayurveda has!! Anc Sci Life 2016; 35:176-9. [PMID: 27143803 PMCID: PMC4850779 DOI: 10.4103/0257-7941.179861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background: Infective hepatitis is a major health hazard in the Indian sub-continent with a large population and improper sanitation adding to the malady. Water-borne or infective hepatitis has no treatment in modern medicine. However, there are multiple accounts of how infective hepatitis can be successfully cured by Ayurvedic medicine. Aim: To review relevant studies in Ayurveda claiming to treat hepatitis. Materials and Methods: A comprehensive PubMed search was conducted using ‘Treatment of Hepatitis’ and ‘Ayurveda’ as the primary search criterion. Results: 27 articles were revealed by the search. 16 of these 27 articles were selected after reading all abstracts. All 16 articles were reviewed in detail and thereafter the current article was written. Conclusion: Ayurveda definitely has a lot to offer in terms of the treatment of hepatitis. However, a mass awareness of this potential of Ayurvedic medicine is desirable to achieve a larger impact on the society.
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Affiliation(s)
- Pradyumna R Raval
- Department of Orthopaedic and Trauma Surgery, Tayside Orthopaedic Rehabilitation Technology Centre, Division of Postgraduate, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, Scotland, UK
| | - Ramchandra M Raval
- Department of Health, Integrated Child Development Scheme, Government of Maharashtra, Karjat Taluka, Raigad District, India
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Li L, Huang XJ, Peng JL, Zheng MY, Zhong DF, Zhang CF, Chen XY. Wedelolactone metabolism in rats through regioselective glucuronidation catalyzed by uridine diphosphate-glucuronosyltransferases 1As (UGT1As). PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:340-349. [PMID: 27002404 DOI: 10.1016/j.phymed.2016.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 01/08/2016] [Accepted: 01/13/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Wedelolactone (WEL), a medicinal plant-derived coumestan, has been reported to exhibit a diverse range of pharmacological activities. However, the metabolism and disposition of WEL remain unexplored. PURPOSE The present study aims to investigate the metabolism of WEL in rats and identify the enzymes responsible for forming major WEL metabolites. METHODS Plasma, urine, feces, and bile samples were collected before and after 50 mg/kg WEL was orally administered to rats. Metabolites were profiled by ultrahigh performance liquid chromatography/quadrupole time-of-flight mass spectrometry and identified by high-performance liquid chromatography-solid-phase extraction-nuclear magnetic resonance spectroscopy. The in vitro WEL glucuronidation activities of human liver microsomes, human kidney microsomes, human intestine microsomes, and 12 recombinant human uridine diphosphate-glucuronosyltransferase (UGT) isoforms were screened. Molecular docking simulation of the interaction between WEL and UGT1A9 was conducted. RESULTS WEL underwent extensive metabolism, and 17 metabolites were identified. The major metabolic pathways observed were glucuronidation and methylation. Glucuronic acid was preferentially introduced into 5-OH, whereas no obvious regioselectivity was observed in the methylation of 11-OH and 12-OH. Multiple UGTs, including UGT1A1, UGT1A3, UGT1A6, UGT1A7, UGT1A8, UGT1A9, and UGT1A10, were involved in forming WEL glucuronides and O-methylated WEL glucuronides. CONCLUSION The extensive glucuronidation and methylation is responsible for the low oral bioavailability of WEL in rats. UGT1A1 and UGT1A9 were the major enzymes involved in the glucuronidation of WEL and O-methylated WEL. Molecular docking studies revealed that 5-OH was accessible to the catalytic domain of UGT1As; therefore, 5-OH exhibited a high probability of glucuronidation.
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Affiliation(s)
- Liang Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China
| | - Xue-juan Huang
- State Key Laboratory of Natural Medicines, Research Department of Pharmacognosy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, China
| | - Jian-long Peng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China
| | - Ming-yue Zheng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China
| | - Da-fang Zhong
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China
| | - Chao-feng Zhang
- State Key Laboratory of Natural Medicines, Research Department of Pharmacognosy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, China.
| | - Xiao-yan Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
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Manvar D, Küçükgüzel İ, Erensoy G, Tatar E, Deryabaşoğulları G, Reddy H, Talele TT, Cevik O, Kaushik-Basu N. Discovery of conjugated thiazolidinone-thiadiazole scaffold as anti-dengue virus polymerase inhibitors. Biochem Biophys Res Commun 2016; 469:743-7. [DOI: 10.1016/j.bbrc.2015.12.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 12/11/2015] [Indexed: 11/29/2022]
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61
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Hafid AF, Permanasari AA, Tumewu L, Adianti M, Aoki C, Widyawaruyanti A, Soetjipto, Lusida MI, Hotta H. Activities of Ficus fistulosa Leave Extract and Fractions against Hepatitis C Virus. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.proche.2016.01.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Bai L, Nong Y, Shi Y, Liu M, Yan L, Shang J, Huang F, Lin Y, Tang H. Luteolin Inhibits Hepatitis B Virus Replication through Extracellular Signal-Regulated Kinase-Mediated Down-Regulation of Hepatocyte Nuclear Factor 4α Expression. Mol Pharm 2015; 13:568-77. [PMID: 26656210 DOI: 10.1021/acs.molpharmaceut.5b00789] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Whether luteolin inhibits HBV replication has not been validated and the underlying mechanism of which has never been elucidated. In this study, we show that luteolin reduces HBV DNA replication in HepG2.2.15 cells. Luteolin effectively inhibited the expression of hepatocyte nuclear factor 4α (HNF4α) and its binding to the HBV promoters in HepG2.2.15 cells. While the extracellular signal-regulated kinase (ERK) was activated by luteolin, inhibition of ERK abolished luteolin-induced HNF4α suppression. Consistently, blocking ERK attenuated the anti-HBV activity of luteolin. In a HBV replication mouse model, luteolin decreased the levels of HBsAg, HBeAg, HBV DNA replication intermediates, and the HBsAg and HBcAg expression. Taken together, our results validated the anti-HBV activity of luteolin in both in vitro and in vivo studies and established a signaling cascade consisting of ERK and HNF4α for inhibition of HBV replication by luteolin, which may be exploited for clinical application of luteolin for anti-HBV therapy.
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Affiliation(s)
- Lang Bai
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Yunhong Nong
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Ying Shi
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Miao Liu
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Libo Yan
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Jin Shang
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Feijun Huang
- Department of Forensic Pathology, Medical School of Basic and Forensic Sciences, Sichuan University , Chengdu 610041, China
| | - Yong Lin
- Molecular Biology and Lung Cancer Program, Lovelace Respiratory Research Institute , 2425 Ridgecrest Dr. SE, Albuquerque, New Mexico 87108, United States
| | - Hong Tang
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
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Govea-Salas M, Rivas-Estilla AM, Rodríguez-Herrera R, Lozano-Sepúlveda SA, Aguilar-Gonzalez CN, Zugasti-Cruz A, Salas-Villalobos TB, Morlett-Chávez JA. Gallic acid decreases hepatitis C virus expression through its antioxidant capacity. Exp Ther Med 2015; 11:619-624. [PMID: 26893656 DOI: 10.3892/etm.2015.2923] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 09/25/2015] [Indexed: 01/16/2023] Open
Abstract
Gallic acid (GA) is a natural phenolic compound that possesses various biological effects, including antioxidant, anti-inflammatory, antibiotic, anticancer, antiviral and cardiovascular protection activities. In addition, numerous studies have reported that antioxidants possess antiviral activities. Hepatitis C virus (HCV) is one of the most important causes of chronic liver diseases worldwide, but until recently, only a small number of antiviral agents had been developed against HCV. Therefore, the present study investigated whether GA exhibits an anti-HCV activity. The effects of GA on HCV expression were examined using a subgenomic HCV replicon cell culture system that expressed HCV nonstructural proteins (NSs). In addition, GA cytotoxicity was evaluated at concentrations between 100-600 mg/ml using an MTT assay. Huh-7 replicon cells were incubated with 300 mg/ml GA for different times, and the HCV-RNA and protein levels were measured by reverse transcription-quantitative polymerase chain reaction and western blot analysis, respectively. Pyrrolidine dithiocarbamate (PDTC) was used as an antioxidant control and reactive oxygen species (ROS) production was measured during the exposure. The results indicated that GA did not produce a statistically significant cytotoxicity in parental and HCV replicon cells. Furthermore, GA downregulated the expression levels of NS5A-HCV protein (~55%) and HCV-RNA (~50%) in a time-dependent manner compared with the levels in untreated cells. Notably, GA treatment decreased ROS production at the early time points of exposure in cells expressing HCV proteins. Similar results were obtained upon PDTC exposure. These findings suggest that the antioxidant capacity of GA may be involved in the downregulation of HCV replication in hepatoma cells.
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Affiliation(s)
- Mayela Govea-Salas
- Food Research Department, School of Chemical Sciences, Autonomous University of Coahuila, Saltillo Unit, Saltillo, Coahuila 25260, México; Department of Biochemistry and Molecular Medicine, School of Medicine, Autonomous University of Nuevo Leon, Monterrey, Nuevo Leon 66450, México
| | - Ana Maria Rivas-Estilla
- Department of Biochemistry and Molecular Medicine, School of Medicine, Autonomous University of Nuevo Leon, Monterrey, Nuevo Leon 66450, México
| | - Raul Rodríguez-Herrera
- Food Research Department, School of Chemical Sciences, Autonomous University of Coahuila, Saltillo Unit, Saltillo, Coahuila 25260, México
| | - Sonia A Lozano-Sepúlveda
- Department of Biochemistry and Molecular Medicine, School of Medicine, Autonomous University of Nuevo Leon, Monterrey, Nuevo Leon 66450, México
| | - Cristobal N Aguilar-Gonzalez
- Food Research Department, School of Chemical Sciences, Autonomous University of Coahuila, Saltillo Unit, Saltillo, Coahuila 25260, México
| | - Alejandro Zugasti-Cruz
- Food Research Department, School of Chemical Sciences, Autonomous University of Coahuila, Saltillo Unit, Saltillo, Coahuila 25260, México
| | - Tanya B Salas-Villalobos
- Department of Biochemistry and Molecular Medicine, School of Medicine, Autonomous University of Nuevo Leon, Monterrey, Nuevo Leon 66450, México
| | - Jesus Antonio Morlett-Chávez
- Food Research Department, School of Chemical Sciences, Autonomous University of Coahuila, Saltillo Unit, Saltillo, Coahuila 25260, México; Clinical Laboratory Department, General Hospital Zone No. 2, Mexican Social Security Institute, Saltillo, Coahuila 25017, México
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A Complex Multiherbal Regimen Based on Ayurveda Medicine for the Management of Hepatic Cirrhosis Complicated by Ascites: Nonrandomized, Uncontrolled, Single Group, Open-Label Observational Clinical Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:613182. [PMID: 26339267 PMCID: PMC4539059 DOI: 10.1155/2015/613182] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 04/02/2015] [Accepted: 04/02/2015] [Indexed: 12/14/2022]
Abstract
Hepatic cirrhosis is one of the leading causes of death worldwide, especially if complicated by ascites. This chronic condition can be related to the classical disease entity jalodara in Traditional Indian Medicine (Ayurveda). The present paper aims to evaluate the general potential of Ayurvedic therapy for overall clinical outcomes in hepatic cirrhosis complicated by ascites (HCcA). In form of a nonrandomized, uncontrolled, single group, open-label observational clinical study, 56 patients fulfilling standardized diagnostic criteria for HCcA were observed during their treatment at the P. D. Patel Ayurveda Hospital, Nadiad, India. Based on Ayurvedic tradition, a standardized treatment protocol was developed and implemented, consisting of oral administration of single and compound herbal preparations combined with purificatory measures as well as dietary and lifestyle regimens. The outcomes were assessed by measuring liver functions through specific clinical features and laboratory parameters and by evaluating the Child-Pugh prognostic grade score. After 6 weeks of treatment and a follow-up period of 18 weeks, the outcomes showed statistically significant and clinically relevant improvements. Further larger and randomized trials on effectiveness, safety, and quality of the Ayurvedic approach in the treatment of HCcA are warranted to support these preliminary findings.
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Zhao Y, Peng L, Yang LC, Xu XD, Li WJ, Luo XM, Jin X. Wedelolactone Regulates Lipid Metabolism and Improves Hepatic Steatosis Partly by AMPK Activation and Up-Regulation of Expression of PPARα/LPL and LDLR. PLoS One 2015; 10:e0132720. [PMID: 26168156 PMCID: PMC4500417 DOI: 10.1371/journal.pone.0132720] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 06/17/2015] [Indexed: 01/04/2023] Open
Abstract
Hyperlipidemia is considered one of the greatest risk factors of cardiovascular diseases. We investigated the anti-hyperlipidemic effect and the underlying mechanism of wedelolactone, a plant-derived coumestan, in HepG2 cells and high-fat diet (HFD)−induced hyperlipidemic hamsters. We showed that in cultured HepG2 cells, wedelolactone up-regulated protein levels of adenosine monophosphate activated protein kinase (AMPK) and peroxisome proliferator-activated receptor-alpha (PPARα) as well as the gene expression of AMPK, PPARα, lipoprotein lipase (LPL), and the low-density lipoprotein receptor (LDLR). Meanwhile, administration of wedelolactone for 4 weeks decreased the lipid profiles of plasma and liver in HFD−induced hyperlipidemic hamsters, including total cholesterol (TC), triglycerides (TG), and low-density lipoprotein-cholesterol (LDL-C). The activation of AMPK and up-regulation of PPARα was also observed with wedelolactone treatment. Furthermore, wedelolactone also increased the activities of superoxidase dismutase (SOD) and glutathione peroxidase (GSH-Px) and decreased the level of the lipid peroxidation product malondialdehyde (MDA) in the liver, therefore decreasing the activity of alanine aminotransferase (ALT). In conclusion, we provide novel experimental evidence that wedelolactone possesses lipid-lowering and steatosis-improving effects, and the underlying mechanism is, at least in part, mediated by the activation of AMPK and the up-regulation of PPARα/LPL and LDLR.
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Affiliation(s)
- Yun Zhao
- Department of Basic Medical Sciences of Medical College, Xiamen University, Xiamen, Fujian, China
- Xiamen Key Laboratory of Chiral Drugs, Xiamen, Fujian, China
| | - Lu Peng
- Department of Basic Medical Sciences of Medical College, Xiamen University, Xiamen, Fujian, China
- Xiamen Key Laboratory of Chiral Drugs, Xiamen, Fujian, China
| | - Li-chao Yang
- Department of Basic Medical Sciences of Medical College, Xiamen University, Xiamen, Fujian, China
- Xiamen Key Laboratory of Chiral Drugs, Xiamen, Fujian, China
| | - Xu-dong Xu
- Department of Cardiology, Zhongshan Hospital, Xiamen, Fujian, China
| | - Wei-jie Li
- Department of Basic Medical Sciences of Medical College, Xiamen University, Xiamen, Fujian, China
- Xiamen Key Laboratory of Chiral Drugs, Xiamen, Fujian, China
| | - Xiu-mei Luo
- Department of Basic Medical Sciences of Medical College, Xiamen University, Xiamen, Fujian, China
| | - Xin Jin
- Department of Basic Medical Sciences of Medical College, Xiamen University, Xiamen, Fujian, China
- Xiamen Key Laboratory of Chiral Drugs, Xiamen, Fujian, China
- * E-mail:
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Mirza MU, Ghori NUH, Ikram N, Adil AR, Manzoor S. Pharmacoinformatics approach for investigation of alternative potential hepatitis C virus nonstructural protein 5B inhibitors. Drug Des Devel Ther 2015; 9:1825-41. [PMID: 25848219 PMCID: PMC4383224 DOI: 10.2147/dddt.s75886] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Hepatitis C virus (HCV) is one of the major viruses affecting the world today. It is a highly variable virus, having a rapid reproduction and evolution rate. The variability of genomes is due to hasty replication catalyzed by nonstructural protein 5B (NS5B) which is also a potential target site for the development of anti-HCV agents. Recently, the US Food and Drug Administration approved sofosbuvir as a novel oral NS5B inhibitor for the treatment of HCV. Unfortunately, it is much highlighted for its pricing issues. Hence, there is an urgent need to scrutinize alternate therapies against HCV that are available at affordable price and do not have associated side effects. Such a need is crucial especially in underdeveloped countries. The search for various new bioactive compounds from plants is a key part of pharmaceutical research. In the current study, we applied a pharmacoinformatics-based approach for the identification of active plant-derived compounds against NS5B. The results were compared to docking results of sofosbuvir. The lead compounds with high-binding ligands were further analyzed for pharmacokinetic and pharmacodynamic parameters based on in silico absorption, distribution, metabolism, excretion, and toxicity (ADMET) profile. The results showed the potential alternative lead compounds that can be developed into commercial drugs having high binding energy and promising ADMET properties.
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Affiliation(s)
- Muhammad Usman Mirza
- Centre for Research in Molecular Medicine (CRiMM), The University of Lahore, Lahore, Pakistan
| | - Noor-Ul-Huda Ghori
- Atta-ur-Rehman School of Applied Biosciences (ASAB), National University of Science and Technology, Islamabad, Pakistan
| | - Nazia Ikram
- Institute of Molecular Biology and Biotechnology (IMBB), The University of Lahore, Lahore, Pakistan
| | - Abdur Rehman Adil
- Centre for Excellence in Molecular Biology (CEMB), The University of Punjab, Lahore, Pakistan
| | - Sadia Manzoor
- Institute of Molecular Biology and Biotechnology (IMBB), The University of Lahore, Lahore, Pakistan
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Shawkat H, Yakoot M, Shawkat T, Helmy S. Efficacy and safety of a herbal mixture (Viron® tablets) in the treatment of patients with chronic hepatitis C virus infection: a prospective, randomized, open-label, proof-of-concept study. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:799-804. [PMID: 25709404 PMCID: PMC4334351 DOI: 10.2147/dddt.s77168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Background Development of an optimal interferon-free regimen for chronic hepatitis C virus infection is believed to require the combination of different drug classes to provide good antiviral efficacy, clinical and quality of life benefits, as well as a high barrier to resistance. Viron® is a new herbal drug in film-coated tablet form, and is based on a mixture of herbs with known hepatoprotective and antiviral properties. We conducted this study to explore the safety and the potential clinical and quality of life benefits of this product in patients with chronic hepatitis C infection. Methods Eighty-two consecutive patients presenting to our outpatient clinics as already-known or newly-diagnosed cases of chronic hepatitis C virus (HCV) infection, were entered into the study and randomized to three groups to receive escalating doses of Viron for 6 months. Virological, clinical, and enzyme responses, as well as quality of life index scores for chronic liver disease were compared between the groups. Results Of the 20 patients treated with the highest dose of Viron (three tablets twice daily), two (10%) had a complete virological response at the end of treatment (ETR) and two (10%) had a partial ETR, defined as a decrease in viral load of at least 2-log10 at the end of 6 months of treatment, whereas patients treated with the medium dose (two tablets twice daily) and the lowest dose (one tablet twice daily) showed a significantly lower ETR (P=0.043). Alanine aminotransferase levels and scores on the Chronic Liver Disease Questionnaire improved to a significantly greater extent in the highest dose group (P=0.007 and P=0.021, respectively). No serious adverse effects attributable to the herbal formulation were reported in any of the groups, apart from mild transient nausea, bloating, giddiness, and headache in two patients in the group receiving two tablets twice daily and in three patients in the group receiving three tablets twice daily. Conclusion We conclude that this herbal formulation is potentially safe and may offer some added clinical and quality of life benefits when used in the treatment of patients with chronic hepatitis C virus infection. Larger studies could be warranted to evaluate the effects of using this formulation as an add-on therapy to an all-oral combination of a directly acting antiviral drug protocol in the treatment of chronic hepatitis C.
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Affiliation(s)
| | | | - Tarek Shawkat
- KEMET Clinic, Cairo, Egypt ; Internal Medicine Department, Cape Canaveral Hospital, Cocoa Beach, FL, USA
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BEGUM SHAHNAZ, LEE MIRA, GU LIJUAN, HOSSAIN JAMIL, SUNG CHANGKEUN. Exogenous stimulation with Eclipta alba promotes hair matrix keratinocyte proliferation and downregulates TGF-β1 expression in nude mice. Int J Mol Med 2014; 35:496-502. [DOI: 10.3892/ijmm.2014.2022] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 10/07/2014] [Indexed: 11/06/2022] Open
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Comparative hair restorer efficacy of medicinal herb on nude (Foxn1nu) mice. BIOMED RESEARCH INTERNATIONAL 2014; 2014:319795. [PMID: 25478567 PMCID: PMC4247959 DOI: 10.1155/2014/319795] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 08/08/2014] [Indexed: 11/17/2022]
Abstract
Eclipta alba (L.) Hassk, Asiasarum sieboldii (Miq.) F. Maek (Asiasari radix), and Panax ginseng C. A. Mey (red ginseng) are traditionally acclaimed for therapeutic properties of various human ailments. Synergistic effect of each standardized plant extract was investigated for hair growth potential on nude mice, as these mutant mice genetically lack hair due to abnormal keratinization. Dried plant samples were ground and extracted by methanol. Topical application was performed on the back of nude mice daily up to completion of two hair growth generations. The hair density and length of Eclipta alba treated mice were increased significantly (P > 0.001) than control mice. Hair growth area was also distinctly visible in Eclipta alba treated mice. On the other hand, Asiasari radix and Panax ginseng treated mice developing hair loss were recognized from the abortive boundaries of hair coverage. Histomorphometric observation of nude mice skin samples revealed an increase in number of hair follicles (HFs). The presence of follicular keratinocytes was confirmed by BrdU labeling, S-phase cells in HFs. Therefore, Eclipta alba extract and/or phytochemicals strongly displayed incomparability of hair growth promotion activity than others. Thus, the standardized Eclipta alba extract can be used as an effective, alternative, and complementary treatment against hair loss.
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Jahan R, Al-Nahain A, Majumder S, Rahmatullah M. Ethnopharmacological Significance of Eclipta alba (L.) Hassk. (Asteraceae). INTERNATIONAL SCHOLARLY RESEARCH NOTICES 2014; 2014:385969. [PMID: 27355071 PMCID: PMC4897414 DOI: 10.1155/2014/385969] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 09/08/2014] [Indexed: 12/20/2022]
Abstract
Eclipta alba can be found growing wild in fallow lands of Bangladesh where it is considered as a weed by farmers. Traditional medicinal systems of the Indian subcontinent countries as well as tribal practitioners consider the plant to have diverse medicinal values and use it commonly for treatment of gastrointestinal disorders, respiratory tract disorders (including asthma), fever, hair loss and graying of hair, liver disorders (including jaundice), skin disorders, spleen enlargement, and cuts and wounds. The plant has several phytoconstituents like wedelolactone, eclalbasaponins, ursolic acid, oleanolic acid, luteolin, and apigenin. Pharmacological activities of plant extracts and individual phytoconstituents have revealed anticancer, hepatoprotective, snake venom neutralizing, anti-inflammatory, and antimicrobial properties. Phytoconstituents like wedelolactone and ursolic and oleanolic acids as well as luteolin and apigenin can form the basis of new drugs against cancer, arthritis, gastrointestinal disorders, skin diseases, and liver disorders.
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Affiliation(s)
- Rownak Jahan
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka 1209, Bangladesh
| | - Abdullah Al-Nahain
- Department of Pharmacy, University of Development Alternative, Dhanmondi, Dhaka 1209, Bangladesh
| | - Snehali Majumder
- Department of Microbiology and Serology, NH Health, Bangalore 560099, India
| | - Mohammed Rahmatullah
- Department of Pharmacy, University of Development Alternative, Dhanmondi, Dhaka 1209, Bangladesh
- Faculty of Life Sciences, University of Development Alternative, House No. 78, Road No. 11A (new), Dhanmondi, Dhaka 1209, Bangladesh
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Identification of luteolin as enterovirus 71 and coxsackievirus A16 inhibitors through reporter viruses and cell viability-based screening. Viruses 2014; 6:2778-95. [PMID: 25036464 PMCID: PMC4113793 DOI: 10.3390/v6072778] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 06/28/2014] [Accepted: 07/07/2014] [Indexed: 12/11/2022] Open
Abstract
Hand, foot and mouth disease (HFMD) is a common pediatric illness mainly caused by infection with enterovirus 71 (EV71) and coxsackievirus A16 (CA16). The frequent HFMD outbreaks have become a serious public health problem. Currently, no vaccine or antiviral drug for EV71/CA16 infections has been approved. In this study, a two-step screening platform consisting of reporter virus-based assays and cell viability‑based assays was developed to identify potential inhibitors of EV71/CA16 infection. Two types of reporter viruses, a pseudovirus containing luciferase-encoding RNA replicons encapsidated by viral capsid proteins and a full-length reporter virus containing enhanced green fluorescent protein, were used for primary screening of 400 highly purified natural compounds. Thereafter, a cell viability-based secondary screen was performed for the identified hits to confirm their antiviral activities. Three compounds (luteolin, galangin, and quercetin) were identified, among which luteolin exhibited the most potent inhibition of viral infection. In the cell viability assay and plaque reduction assay, luteolin showed similar 50% effective concentration (EC50) values of about 10 μM. Luteolin targeted the post-attachment stage of EV71 and CA16 infection by inhibiting viral RNA replication. This study suggests that luteolin may serve as a lead compound to develop potent anti-EV71 and CA16 drugs.
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Mutheeswaran S, Pandikumar P, Chellappandian M, Ignacimuthu S, Duraipandiyan V, Logamanian M. Consensus analysis of sastric formulations used by non-institutionally trained siddha medical practitioners of Virudhunagar and Tirunelveli districts of Tamil Nadu, India. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:290-6. [PMID: 24583102 DOI: 10.1016/j.jep.2014.02.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 02/18/2014] [Accepted: 02/18/2014] [Indexed: 05/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Siddha system of traditional medicine has been practiced in Tamil Nadu. This system of medicine has a high number of non-institutionally trained practitioners but studies on their traditional medicinal knowledge are not adequate. The present study is aimed to document and analyze the sastric (traditional) formulations used by the non-institutionally trained siddha medical practitioners in Virudhunagar and Tirunelveli districts of Tamil Nadu, India. METHODS After obtaining prior informed consent, interviews were conducted with 115 non-institutionally trained siddha medical practitioners about the sastric formulations used by them for the treatment. Successive free listing method was adopted to collect the data and the data were analyzed by calculating Informant Consensus Factor (Fic) and Informant Agreement Ratio (IAR). RESULTS The study documented data regarding 194 sastric formulations and they were classified into plant, mineral and animal based formulations. Quantitative analysis showed that 62.5% of the formulations were plant based, while the mineral based formulations had a high mean number of citations and versatile uses. Gastrointestinal (12.0%), kapha (11.3%) and dermatological (10.8%) ailments had a high percentage of citations. Jaundice had a high Fic value (0.750) followed by the dermatological ailments. The illness categories with high Fic values under each type of formulation were as follows: jaundice, aphrodisiac and urinary ailments (plant based); jaundice, cuts & wounds and dermatological ailments (mineral based); and hemorrhoids, kapha ailments and heart ailments (animal based formulations). The scientific studies conducted with important formulations under each illness category are discussed. CONCLUSION The present study indicated the importance of some illnesses over the others and inclusion of new illnesses under each formulation. The ingredients used to prepare these formulations have shown varying degrees of scientific evidence; generally limited studies were available on the efficacy of them as formulations. Further in-depth studies on the formulations with high IAR value and Fic value of illness categories will be helpful to improve health status of the people.
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Affiliation(s)
- S Mutheeswaran
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Nungambakkam, Chennai- 600034, Tamil Nadu, India
| | - P Pandikumar
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Nungambakkam, Chennai- 600034, Tamil Nadu, India
| | - M Chellappandian
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Nungambakkam, Chennai- 600034, Tamil Nadu, India
| | - S Ignacimuthu
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Nungambakkam, Chennai- 600034, Tamil Nadu, India; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - V Duraipandiyan
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - M Logamanian
- Department of Noi Nadal, National Institute of Siddha, Tambaram Sanatorium, Chennai 600047, Tamil Nadu, India
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ZHAO BING, LI XIAOMENG. Altholactone induces reactive oxygen species-mediated apoptosis in bladder cancer T24 cells through mitochondrial dysfunction, MAPK-p38 activation and Akt suppression. Oncol Rep 2014; 31:2769-75. [DOI: 10.3892/or.2014.3126] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 02/14/2014] [Indexed: 11/06/2022] Open
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Manfroni G, Cannalire R, Barreca ML, Kaushik-Basu N, Leyssen P, Winquist J, Iraci N, Manvar D, Paeshuyse J, Guhamazumder R, Basu A, Sabatini S, Tabarrini O, Danielson UH, Neyts J, Cecchetti V. The versatile nature of the 6-aminoquinolone scaffold: identification of submicromolar hepatitis C virus NS5B inhibitors. J Med Chem 2013; 57:1952-63. [PMID: 24131104 DOI: 10.1021/jm401362f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have previously reported that the 6-aminoquinolone chemotype is a privileged scaffold to obtain antibacterial and antiviral agents. Herein we describe the design, synthesis, and enzymatic and cellular characterization of new 6-aminoquinolone derivatives as potent inhibitors of NS5B polymerase, an attractive and viable therapeutic target to develop safe anti-HCV agents. The 6-amino-7-[4-(2-pyridinyl)-1-piperazinyl]quinolone derivative 8 proved to be the best compound of this series, exhibiting an IC50 value of 0.069 μM against NS5B polymerase and selective antiviral effect (EC50 = 3.03 μM) coupled with the absence of any cytostatic effect (CC50 > 163 μM; SI > 54) in Huh 9-13 cells carrying a HCV genotype 1b, as measured by MTS assay. These results indicate that the 6-aminoquinolone scaffold is worthy of further investigation in the context of NS5B-targeted HCV drug discovery programs.
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Affiliation(s)
- Giuseppe Manfroni
- Dipartimento di Chimica e Tecnologia del Farmaco, Università degli Studi di Perugia , Via del Liceo 1, 06123 Perugia, Italy
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Visintini Jaime MF, Redko F, Muschietti LV, Campos RH, Martino VS, Cavallaro LV. In vitro antiviral activity of plant extracts from Asteraceae medicinal plants. Virol J 2013; 10:245. [PMID: 23890410 PMCID: PMC3733733 DOI: 10.1186/1743-422x-10-245] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 07/24/2013] [Indexed: 11/30/2022] Open
Abstract
Background Due to the high prevalence of viral infections having no specific treatment and the constant appearance of resistant viral strains, the development of novel antiviral agents is essential. The aim of this study was to evaluate the antiviral activity against bovine viral diarrhea virus, herpes simplex virus type 1 (HSV-1), poliovirus type 2 (PV-2) and vesicular stomatitis virus of organic (OE) and aqueous extracts (AE) from: Baccharis gaudichaudiana, B. spicata, Bidens subalternans, Pluchea sagittalis, Tagetes minuta and Tessaria absinthioides. A characterization of the antiviral activity of B. gaudichaudiana OE and AE and the bioassay-guided fractionation of the former and isolation of one active compound is also reported. Methods The antiviral activity of the OE and AE of the selected plants was evaluated by reduction of the viral cytopathic effect. Active extracts were then assessed by plaque reduction assays. The antiviral activity of the most active extracts was characterized by evaluating their effect on the pretreatment, the virucidal activity and the effect on the adsorption or post-adsorption period of the viral cycle. The bioassay-guided fractionation of B. gaudichaudiana OE was carried out by column chromatography followed by semipreparative high performance liquid chromatography fractionation of the most active fraction and isolation of an active compound. The antiviral activity of this compound was also evaluated by plaque assay. Results B. gaudichaudiana and B. spicata OE were active against PV-2 and VSV. T. absinthioides OE was only active against PV-2. The corresponding three AE were active against HSV-1. B. gaudichaudiana extracts (OE and AE) were the most selective ones with selectivity index (SI) values of 10.9 (PV-2) and >117 (HSV-1). For this reason, both extracts of B. gaudichaudiana were selected to characterize their antiviral effects. Further bioassay-guided fractionation of B. gaudichaudiana OE led to an active fraction, FC (EC50=3.1 μg/ml; SI= 37.9), which showed antiviral activity during the first 4 h of the viral replication cycle of PV-2 and from which the flavonoid apigenin (EC50 = 12.2 ± 3.3 μM) was isolated as a major compound. Conclusions The results showed that, among the species studied, B. gaudichaudiana seemed to be the most promising species as a source of antiviral agents.
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Affiliation(s)
- María F Visintini Jaime
- Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, 4ºP, Ciudad de Buenos Aires, 1113, Argentina
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Brusotti G, Cesari I, Dentamaro A, Caccialanza G, Massolini G. Isolation and characterization of bioactive compounds from plant resources: the role of analysis in the ethnopharmacological approach. J Pharm Biomed Anal 2013; 87:218-28. [PMID: 23591140 DOI: 10.1016/j.jpba.2013.03.007] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 03/11/2013] [Indexed: 12/20/2022]
Abstract
The phytochemical research based on ethnopharmacology is considered an effective approach in the discovery of novel chemicals entities with potential as drug leads. Plants/plant extracts/decoctions, used by folklore traditions for treating several diseases, represent a source of chemical entities but no information are available on their nature. Starting from this viewpoint, the aim of this review is to address natural-products chemists to the choice of the best methodologies, which include the combination of extraction/sample preparation tools and analytical techniques, for isolating and characterizing bioactive secondary metabolites from plants, as potential lead compounds in the drug discovery process. The work is distributed according to the different steps involved in the ethnopharmacological approach (extraction, sample preparation, biological screening, etc.), discussing the analytical techniques employed for the isolation and identification of compound/s responsible for the biological activity claimed in the traditional use (separation, spectroscopic, hyphenated techniques, etc.). Particular emphasis will be on herbal medicines applications and developments achieved from 2010 up to date.
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Affiliation(s)
- G Brusotti
- Department of Drug Sciences, University of Pavia, Pavia, Italy; Center for Studies and Researches in Ethnopharmacy (C.I.St.R.E.), University of Pavia, Pavia, Italy.
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